Snapdragon 810 and 808 had really bad heats problems.. Not only Z3+, LG G4, Nexus 5x, Nexus 6p also having bootloop issue due to inefficient heat control thus melt in the motherboard and can cause hard brick or even dead.

Heats ALOT! Such games as Pokemon GO is barely playable -fFirst minutes OK, after then you can cook an eggs on this phone and game gets laggy as hell throws errors etc. Very, very bad heat management - actually all xperia z series I have owned heats up quite quickly when approach multitasking or demanding applications. Shame on Sony. I think to switch to Samsung. I newer liked Samsung's buit in interface, but they made phones that are fast and heats alot less than Sony's.

Gino76, 03 Apr 2017With a limited budget I'm trying to choose between the newer Z5 and the older Z3+. I also read... moreGo for z5 for sure. It has dual-copper-pipe to cooling down the unefficient-SD810 so it will produce less-heat (technically), finger print, and latest rear-camera (between both of them)